package org.example.y25.m3;

import java.util.Scanner;

public class lanqiao_19725 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int N = scanner.nextInt();
        float p = scanner.nextFloat();
        double n = N* p;
        for (int i = 0; i < N / 2; i++) {

        }
    }
}
